导电聚苯胺的制备方法及应用

综述了导电聚苯胺的研究进展，介绍了聚苯胺的分子结构与导电机理，采用对比的方法详细介绍了聚苯胺的合成方法及其改进方法，简要介绍了聚苯胺在二次电池及传感器件等方面的应用研究，指出了聚苯胺研究中存在的问题，并对聚苯胺研究的前景进行了展望。     

导电高分子聚苯胺的合成及应用

聚苯胺(PANI)是研究最为广泛的导电高分子材料之一。综述了聚苯胺的结构、特性及几种合成聚苯胺的方法,介绍了聚苯胺的掺杂方法及聚苯胺的应用前景。     

聚苯胺的合成及应用研究进展

聚苯胺是研究最为广泛的导电高分子材料之一。综述了聚苯胺的各种合成方法,介绍了聚苯胺的应用前景。     

水溶性聚苯胺合成及聚苯胺在防腐领域的应用

介绍了聚苯胺的结构,主要讨论了水溶性聚苯胺的3种合成方法,及聚苯胺在防腐领域的研究及发展,阐述了聚苯胺的防腐机理和聚苯胺防腐涂层的应用,并对其前景进行展望,认为水溶性聚苯胺的合成研究及其缓蚀理论分析还需进一步深入地开展研究。     

酸掺杂聚苯胺及其防腐涂料的研究

介绍了聚苯胺的结构、导电机理和酸掺杂过程,综述了近年来国内外在酸掺杂聚苯胺研究方面的进展.着重讨论了聚苯胺防腐涂料的制备方法、检测方法以及聚苯胺防腐涂料的应用和前景展望.     

聚苯胺材料在CO_2分离膜中的应用研究进展

主要介绍了聚苯胺的物理化学性质,纳米材料的制备方法,综述了近年来基于聚苯胺材料的混合基质膜、复合膜、共混膜的CO_2分离研究进展,分析了聚苯胺的CO_2促进传递机理,指出了研究中存在的问题,并对聚苯胺材料的未来研究方向进行了预测。     

聚苯胺防腐涂料的研究现状及发展

综述了国内外聚苯胺在金属腐蚀防护领域的最新研究进展。介绍了聚苯胺涂层的防腐蚀机理,制备方法及其复合改性的情况。指出了聚苯胺研究中存在的问题,应用现状和对其发展前景的展望。     

导电聚苯胺的研究进展及应用开发前景

介绍了聚苯胺的制备、掺杂和导电机理,并结合目前可溶性聚苯胺及其复合改性的研究情况,着重介绍了聚苯胺的应用现状和发展趋势。     

聚苯胺复合防腐材料的研究进展

主要针对聚苯胺的结构和性能,讨论了它对金属的四种防腐机理:屏蔽作用、钝化作用、阳极保护作用和电场作用。同时,综述了目前普遍使用的聚苯胺防腐涂层制备方法,对制备聚苯胺/无机粒子复合防腐材料的研究状况进行了简单介绍。最后,对聚苯胺复合防腐材料的研究前景进行了展望。     

导电聚苯胺的研究进展

聚苯胺是近年导电高分子材料领域的研究热点之一。主要介绍了聚苯胺的合成及改性方法，并对它的导电机理和应用作了简要介绍。     

Electromagnetic interference shielding with polyaniline nanofibers composite coatings

Hydrochloric acid doped polyaniline (PANI) nanofibers were synthesized by an interfacial polymerization with tetrachloride as the organic solvent and with a relatively higher aniline concentration. The doped PANI nanofibers were dispersed in cyclohexanone and the dispersion was mixed with solution of polyacrylate to prepare PANI nanofibers composite coatings. It was found that the yield of the doped PANI nanofibers can be as high as 23%, though a small amount of irregular shaped PANI particles and PANI nanofibers with relatively larger diameter were also obtained. The conductivity of the PANI nanofibers based composite coatings increased with the PANI nanofibers contents and a percolation threshold of 0.2 was demonstrated. The shielding effectiveness of the PANI nanofibers based coatings increased with PANI nanofibers loadings and shielding effectiveness as high as 63 dB can be achieved with PANI nanofibers loadings of 45%. POLYM. ENG. SCI., 2008. © 2007 Society of Plastics Engineers     

聚苯胺/氧化石墨烯接枝复合材料的制备及电容性能研究

利用化学氧化法原位聚合制备了聚苯胺(PANI)/氧化石墨烯(GO)接枝复合材料。透射电子显微镜表明,PANI纳米颗粒均匀地分布在GO的表面;通过UV-vis光谱证实了GO和PANI之间存在着强烈的相互作用;充放电测试表明,PANI/GO纳米复合材料具有良好的电荷储存特性,最高比电容可达575 F/g。由于与GO之间的化学结合作用,PANI的充放电循环稳定性得到明显提高。     

Preparation of polyaniline/polyacrylate composites and their application for electromagnetic interference shielding

Polyaniline (PANI) deposited polyacrylate (PA) powders were prepared by chemical polymerization of aniline in hydrochloric acid with dispersed PA powders. The powders, after dedoped with ammonia water, were re‐doped with camphorsulfonic acid (CSA) to render them conductive, and conductive PANI/polyacrylate composite coatings (PANI/PA) were prepared by bead milling of these CSA‐doped PANI (PANI–CSA) deposited polyacrylate powders (PANI–CSA/PA). It was found that aniline was polymerized preferentially at the surfaces of the powders and PANI deposited powders were obtained as indicated by the scanning electronic microscopy images. The amount of deposited PANI increased with the aniline/polyacrylate weight ratio in feed, and no isolated PANI particles was found. UV–Vis and Fourier transformed infrared spectra indicated that the PANI layer was physically adhered to the PA powders, and not chemically. Conductivities of the PANI–CSA/PA powders and the PANI/PA coatings increased with the amounts of PANI–CSA and a percolation threshold of 0.2 and 0.3 was demonstrated, respectively. Electromagnetic interference shielding measurements showed that the shielding effectiveness of the PANI/PA coatings increased with PANI–CSA loadings, and shielding effectiveness as high as 60 dB can be achieved with the coatings. POLYM. COMPOS., 27:627–632, 2006. © 2006 Society of Plastics Engineers     

Preparation and performance of PANI–PVA composite film doped with HCl

The polyaniline (PANI)–poly (vinyl alcohol) (PVA) composite film doped with HCl was prepared by adopting PVA as matrix. Effects of PVA content and film drying temperature on properties of HCl–PANI–PVA composite film were studied. A comparison was made for tensile strength, elasticity, conductivity and thermal stability of PVA, HCl–PANI or HCl–PANI–PVA. PVA film presented the highest tensile strength and elasticity (150.8?MPa and 300.0%), but its conductivity was the lowest. The conductivity of HCl–PANI–PVA was the highest (1500?S?m^?1), and tensile strength and elasticity of HCl–PANI–PVA were higher than those of HCl–PANI. The order of their thermal stability is PVA?>?HCl–PANI?>?HCl–PANI–PVA before 260°C, and the order of their thermal stability is HCl–PANI?>?HCl–PANI–PVA?>?PVA after 260°C. At the same time, the structure and conductive mechanism of composite materials were characterised and analysed through infrared and scanning electron microscopy (SEM).     

聚苯胺／热塑性塑料复合材料的制备及其性能研究

通过机械共混把化学法合成的聚苯胺粉末分别与ＰＶＣ，ＡＢＳ共混复合，制备了苯胺复合材料，着重研究了聚苯胺用量对复合材料的电导率、介电常数、介电损耗角正切和力学性能的影响。发现ＰＶＣ是一种较适宜的基体材料，当ＰＡＮＩ用量为８０份时，ＰＡＮＩ／ＰＶＣ复合材料的电导率可提高七个数量级，而且仍具有良好的力学性能。ＳＥＭ观察的结果表明ＰＡＮＩ在ＰＶＣ中具有较好的分散性。     

聚苯胺/氧化钇复合材料的合成及热稳定性研究

合成了对甲基苯磺酸(p-TSA)掺杂的导电聚苯胺(PANI)及聚苯胺/氧化钇(PANI/Y2O3)复合材料.比较了不同实验条件对两种材料电导率的影响,研究了两种材料的热稳定性及粒径分布.结果表明,在所研究实验条件下,PANI/Y2O3的电导率低于PANI,而热稳定性则优于PANI;Y2O3的掺入使PANI的粒径减小.     

Assessment of mechanical performance,thermal stability and water resistance of novel conductive poly(lactic acid)/modified natural rubber blends with low loading of polyaniline

Biodegradable conductive polymer blends made from poly(lactic acid) (PLA), liquid natural rubber (LNR) and polyaniline (PANI) were prepared via a melt‐blending technique assisted by ultrasonic treatment. The effects of PANI at low loading (0.03 to 0.11 wt%) on the electrical conductivity and mechanical, thermal and physical properties of PLA/LNR/PANI blends were investigated. It was found that the mechanical properties of samples improved when PANI was introduced into PLA/LNR. Tensile results showed that the optimum loading of PANI was achieved at 0.07 wt% with an improvement of 8% in tensile strength compared to neat PLA/LNR. Although it was at low loading, the incorporation of PANI promoted an outstanding electrical conductivity to PLA/LNR blends. Thermal analysis of the PLA/LNR/PANI blends was conducted using differential scanning calorimetry and thermogravimetry. The thermal stabilities of the blends were improved markedly with the presence of PANI. Comparing to PLA/LNR, the incorporation of PANI component improved the resistance towards water absorption. Variable‐pressure scanning electron microscopy micrographs of PLA/LNR/PANI confirmed the good mixing of PANI with PLA/LNR and strong interaction networks among the PANI, PLA and LNR components. © 2018 Society of Chemical Industry     

聚苯胺改性的研究进展

在导电聚合物中,聚苯胺(PANI)由于具有很高的导电性、热稳定性、容易制备等性质而受到了格外的关注。但由于PANI分子链骨架的刚性较强,分子间相互作用力大,导致其溶解、加工性能较差,对其实际应用造成了极大限制。为了改善提高聚苯胺的溶解性和加工性能,大量的研究人员对PANI展开了深入的研究。本文介绍了采用乳液聚合法和反相乳液聚合法合成聚苯胺,;介绍了聚苯胺苯环上和氨基氮上取代或改性两大类衍生物,分析了聚苯胺及其衍生物的结构,对其研究和应用作了简要综述。。     

Ion transport and degradation studies of a polyaniline-modified electrode using SECM

The morphology and ion transport characteristics of polyaniline (PANI) films on a platinum electrode were investigated using scanning electrochemical microscopy method (SECM). An ultramicroelectrode (UME) tip was positioned close to the surface of a PANI-modified substrate electrode, and the current signal at the tip and substrate electrodes, during a substrate potential step or linear sweep were monitored simultaneously. Proton transport occurred on the PANI film at a pH of 6 during the first and second redox cycles of PANI was monitored at this pH. The chemical reaction pathway of PANI as a function of substrate potential was analyzed. Different species of degradation products were detected electrochemically at the SECM tip. Benzoquinone (BQ) was found to be the major product of anodic degradation of PANI. Chemical imaging of the anodic degradation of PANI was performed by SECM during applying different potential steps to the PANI. The anodic threshold of 0.75 V was suggested as the potential at which degradation of PANI begins.     

Electrically conductive composites based on epoxy resin containing polyaniline–DBSA‐ and polyaniline–DBSA‐coated glass fibers

Four kinds of polyaniline (PANI)‐coated glass fibers (GF–PANI) combined with bulk PANI particles were synthesized. GF–PANI fillers containing different PANI contents were incorporated into an epoxy–anhydride system. The best conductivity behavior of the epoxy/GF–PANI composites was obtained with a GF–PANI filler containing 80% PANI. Such a composite shows the lowest percolation threshold at about 20% GF–PANI or 16% PANI (glass fiber‐free basis). The PANI‐coated glass fibers act as conductive bridges, interconnecting PANI particles in the epoxy matrix, thus contributing to the improvement of the conductivity of the composite and the lower percolation threshold, compared with that of a epoxy/PANI–powder composite. Particularly, the presence of glass fibers significantly improves the mechanical properties, for example, the modulus and strength of the conductive epoxy composites. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 1329–1334, 2004